Mechanism of strong ferromagnetism in GdN

T. Kasuya; D. X. Li

doi:10.1016/S0304-8853(96)00737-8

Mechanism of strong ferromagnetism in GdN

T. Kasuya, D. X. Li

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

GdN and EuO are found to be strong ferromagnets with similar values of T_e. They have similar electronic characteristics but have different 4f level positions and band gaps. Due to these differences, a mechanism for strong ferromagnetism in EuO is not applicable for GdN. Detailed theoretical investigation has been performed on the cross processes between the f-d mixing and the f-d exchange interactions, which are thought to give strong ferromagnetic exchange interaction. It is found that the mixing through 4f⁸ configuration is important in GdN in good agreement with experimental results.

Original language	English
Pages (from-to)	L1-L6
Journal	Journal of Magnetism and Magnetic Materials
Volume	167
Issue number	1-2
DOIs	https://doi.org/10.1016/S0304-8853(96)00737-8
Publication status	Published - 1997 Mar

Keywords

EuO
Ferromagnetic exchange
GdN
Intersite interaction
p-f and d-f mixing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Mechanism of strong ferromagnetism in GdN",

abstract = "GdN and EuO are found to be strong ferromagnets with similar values of Te. They have similar electronic characteristics but have different 4f level positions and band gaps. Due to these differences, a mechanism for strong ferromagnetism in EuO is not applicable for GdN. Detailed theoretical investigation has been performed on the cross processes between the f-d mixing and the f-d exchange interactions, which are thought to give strong ferromagnetic exchange interaction. It is found that the mixing through 4f8 configuration is important in GdN in good agreement with experimental results.",

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AU - Kasuya, T.

AU - Li, D. X.

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N2 - GdN and EuO are found to be strong ferromagnets with similar values of Te. They have similar electronic characteristics but have different 4f level positions and band gaps. Due to these differences, a mechanism for strong ferromagnetism in EuO is not applicable for GdN. Detailed theoretical investigation has been performed on the cross processes between the f-d mixing and the f-d exchange interactions, which are thought to give strong ferromagnetic exchange interaction. It is found that the mixing through 4f8 configuration is important in GdN in good agreement with experimental results.

AB - GdN and EuO are found to be strong ferromagnets with similar values of Te. They have similar electronic characteristics but have different 4f level positions and band gaps. Due to these differences, a mechanism for strong ferromagnetism in EuO is not applicable for GdN. Detailed theoretical investigation has been performed on the cross processes between the f-d mixing and the f-d exchange interactions, which are thought to give strong ferromagnetic exchange interaction. It is found that the mixing through 4f8 configuration is important in GdN in good agreement with experimental results.

KW - EuO

KW - Ferromagnetic exchange

KW - GdN

KW - Intersite interaction

KW - p-f and d-f mixing

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